EP 0273724 B1 19920617 - ACID GAS SCRUBBING BY COMPOSITE SOLVENT-SWOLLEN MEMBRANES
Title (en)
ACID GAS SCRUBBING BY COMPOSITE SOLVENT-SWOLLEN MEMBRANES
Publication
Application
Priority
US 94799686 A 19861230
Abstract (en)
[origin: EP0273724A2] A composite immobilized liquid membrane suitable for acid gas scrubbing is disclosed. The membrane is a solvent-swollen polymer and a microporous polymeric support, the solvent being selected from a class of highly polar solvents containing at least one atom selected from nitrogen, oxygen, phosphorous and sulfur, and having a boiling point of at least 100 DEG C and a solubility parameter of from about 7.5 to about 13.5 (cal/cm<3>-atm)<1/2>. Such solvents are homogeneously distributed through the solvent-swollen polymer from 20% to 95% by weight. Also disclosed are methods of acid gas scrubbing of high- and low-Btu gas effluents with such solvent-swollen membranes.
IPC 1-7
IPC 8 full level
B01D 53/22 (2006.01); B01D 61/38 (2006.01); B01D 67/00 (2006.01); B01D 69/10 (2006.01); B01D 69/12 (2006.01)
CPC (source: EP US)
B01D 53/228 (2013.01 - EP US); B01D 61/38 (2013.01 - EP US); B01D 67/0006 (2013.01 - EP US); B01D 69/107 (2022.08 - EP US); B01D 69/125 (2013.01 - EP US); B01D 2256/16 (2013.01 - EP US); B01D 2257/304 (2013.01 - EP US); B01D 2257/504 (2013.01 - EP US); B01D 2323/16 (2013.01 - EP US); B01D 2323/30 (2013.01 - EP US); B01D 2325/022 (2013.01 - EP US); B01D 2325/36 (2013.01 - EP US); Y02C 20/40 (2020.08 - EP US)
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0273724 A2 19880706; EP 0273724 A3 19890329; EP 0273724 B1 19920617; AT E77257 T1 19920715; AU 599185 B2 19900712; AU 8314187 A 19880630; CA 1312428 C 19930112; DE 3779893 D1 19920723; DE 3779893 T2 19921224; JP S63175617 A 19880720; NO 171248 B 19921109; NO 171248 C 19930217; NO 875397 D0 19871222; NO 875397 L 19880701; US 4737166 A 19880412
DOCDB simple family (application)
EP 87311413 A 19871223; AT 87311413 T 19871223; AU 8314187 A 19871230; CA 554872 A 19871218; DE 3779893 T 19871223; JP 33670987 A 19871229; NO 875397 A 19871222; US 94799686 A 19861230